/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package view;

import java.io.IOException;
import java.io.PrintWriter;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import service.StatefulSessionBeanLocal;

/**
 *
 * @author thaidacvinh
 */
public class TestStatefulSessionBeanServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            /* TODO output your page here. You may use following sample code. */
            StatefulSessionBeanLocal statefulSessionBeanLocal;
            HttpSession session = request.getSession();
            if (session.getAttribute("statefulSessionBeanLocal") == null) {
                Context ctx = new InitialContext();
                statefulSessionBeanLocal = (StatefulSessionBeanLocal) ctx.lookup("java:comp/env/StatefulSessionBean");
                session.setAttribute("statefulSessionBeanLocal", statefulSessionBeanLocal);
            }
            statefulSessionBeanLocal = (StatefulSessionBeanLocal) session.getAttribute("statefulSessionBeanLocal");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet TestStatefulSessionBeanServlet</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet TestStatefulSessionBeanServlet</h1>");
            String session_id = request.getSession().getId();
            out.println("Current Session ID: " + session_id + "<br />");
            String info = statefulSessionBeanLocal.getInfo(session_id);
            out.println("Calling EJB: " + info);
            out.println("</body>");
            out.println("</html>");
        } catch (Exception ex) {
            System.err.println(ex);
        } finally {            
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
